GI Tau

 

 

 

HBC56

 

 







Alternative names:
HBC 56, Haro 6-21, St 29
Type:
CTTS
Spectral type:
K6 V
Photometric data:
U-B:
0. 62
B-V:
1. 61
V:
13. 01
V-R:
1. 10
R-I:
1. 06
J-H:
0. 95
H-K:
0. 62
K:
7. 62
K-L:
1. 05
IRAS Fluxes(Jy): F12  = 2. 19
F25  = 2. 87
F60  = 1. 90
F100 =
Activity parameters:
Pphot:
7.2 - 4.6 days
[7, 71]
V Range:
Variable
[71]
vsini:
12 Km/s
X-rays luminosity: (EINSTEIN)
1.91×1030 erg s-1 (0.16-3.5 KeV)
[15]
Wind parameters:
W(Hα) :
19 Å
W([OI]) :
0.26 Å
[35]
Associated with:
Binarity:
Characteristics:
See GK Tau






 

 

IUE data:








Mg II Si II He II C IV Si IV O I F 2900 F1855
(erg-
cm2s) (-erg-
cm2s) (erg-
cm2s) (-erg-
cm2s) (-erg-
cm2s) (-erg-
cm2s) (-erg--
cm2s˚A ) (-erg--
cm2s˚A )








8.7E-14 3.5E-15








 

 

IUE spectra:









no
¯
Cam. Image Disp. Ap. Date T. exp.
Comments
Mag
 
[min.]









 
1 LWP 27156 L L 94-01-02 80.00 E=104,C=84,B=54
 
2 SWP 49805 L L 94-01-10 420.00 E=96,C=102,B=77